Remove MD5 assertion in lifecycle test
Remove MD5 assertion in lifecycle test

- We removed MD5 in pivnet
- Follow-up work to clean up all references to MD5

[#142514779]

Signed-off-by: Mark Huang <222d07b3281cbd31b38f93d23c330586c713e995@pivotal.io>

pivotal-cf-experimental/pivnet-resource,pivotal-cf-experimental/pivnet-resource